This application has permission to read, write, send and permanently delete ALL email associated with the gmail account connected to this application.
This is because it was given scope access to: https://mail.google.com
For clients & end-users, please note that this application does not access your personal data. The above only applies to the server-side, business email account used to alert us that our contact from was used.
When a user vists the page and fills out a contact form, this app uses Oauth to send an email from a developer/business email account to another developer/business email account. That is all.